What ideas have you had so far?
Hey,
im currently having trouble trying to solve this question:
Let A = { x E R | 1 ≤ x ≤ 2}.
Let B = { x E R | 8 ≤ x ≤ 11}.
Consider the function f: A → B given by f(x) = 3x + 5. Show that f is invertible and give its inverse function.
If you could help me out with this that would be great!
Thanks